Pressing and embedding type preassembled cover-shaped nut

Abstract

The utility model discloses a pressing and embedding type preassembled cover-shaped nut which comprises a nut body, a cover cap is arranged at the upper end of the nut body, an auxiliary connecting mechanism is arranged between the nut body and the cover cap, the auxiliary connecting mechanism is composed of a butt-joint clamping groove, a butt-joint cylinder and a containing groove, the butt-joint cylinder is fixedly connected with the nut body, and the containing groove is fixedly connected with the butt-joint clamping groove. The butt-joint cylinder is arranged at the lower end of the nut body, the portion, connected with the nut body, of the butt-joint cylinder is located in the butt-joint clamping groove, when the nut is used, the lower end of the cap and the butt-joint cylinder are located in the butt-joint clamping groove and the containing groove respectively, a limiting mechanism is arranged between the butt-joint cylinder and the cap, and a reinforcing ring is fixedly connected to the lower end of the cap. The reinforcing ring is in close contact with the inner wall of the butt-joint clamping groove. By means of the device, the nut disassembly and assembly convenience is improved, and the stability and compactness of components of the nut during action are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to a press-fitted pre-installed cap nut. Background Art

[0002] Cap nuts are used to reduce the difficulty of disassembling and assembling the bolt-nut fixing mechanism after long-term use. Inevitably, the bolt-nut fixing mechanism will be stuck during disassembly and assembly after long-term use, resulting in a reduction in the convenience of disassembling and assembling the bolt-nut mechanism and affecting the practicality of the cap nut. The "press-fitted pre-installed cap nut" disclosed on the Chinese Patent Network, with the application number "202020063285.4", improves the convenience of using the cap nut by setting axial straight-grooved teeth and studs on the surface of the support column. However, when using this nut, the hidden danger of the bolt-nut mechanism getting stuck during disassembly and assembly still cannot be reduced. Content of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a press-fitted pre-installed cap nut, which improves the convenience of disassembling and assembling the cap nut by means of multiple socket and snap connections, provides basic conditions for increasing the contact area between foreign objects and bolts, thereby reducing the difficulty of disassembling and assembling the bolt-nut mechanism, improving the compactness between the components of the cap nut itself, increasing the structural stability of the cap nut, reducing the hidden danger of external pressure damaging the nut components, and improving the practicality of the cap nut.

[0004] The utility model also provides a press-fitted pre-installed cap nut as described above, including: a nut body, a cap is arranged at the upper end of the nut body, an auxiliary connection mechanism is arranged between the nut body and the cap, the auxiliary connection mechanism is composed of a docking groove, a docking cylinder and a receiving groove, the docking cylinder is fixedly connected with the nut body, and the part of the docking cylinder connected with the nut body is located inside the docking groove. When using the nut, the lower end of the cap and the docking cylinder are respectively located inside the docking groove and the receiving groove, and a limiting mechanism is arranged between the docking cylinder and the cap. A reinforcing ring is fixedly connected to the lower end of the cap. When using the nut, the reinforcing ring is in close contact with the inner wall of the docking groove.

[0005] According to the press-fitted pre-installed cap nut of the utility model, there are two spaces, a contact area and a limiting area, inside the receiving groove. The inner wall of the contact area of the receiving groove is in close contact with the docking cylinder, and the inner wall of the limiting area of the receiving groove is not in contact with the side surface of the docking cylinder. This improves the effect of the auxiliary connection mechanism.

[0006] According to the press-fitted pre-installed cap nut of the utility model, the limiting mechanism is composed of a block and an added opening, and the block passes through the added opening and enters the inside of the limiting area of the receiving groove. This facilitates the use of the limiting mechanism.

[0007] A press-fitting type pre-installed cap nut according to the present utility model, the length of the docking slot is greater than the thickness of the docking cylinder, and when using the nut, the lower end of the cap completely enters the interior of the docking slot. The compactness of the structure of the cap nut itself is improved.

[0008] A press-fitting type pre-installed cap nut according to the present utility model, the reinforcing ring is made of thermoplastic plastic, and the diameter of the reinforcing ring when not stretched is smaller than the diameter of the lower end of the cap. The convenience of using the reinforcing ring is improved.

[0009] Beneficial effects:

[0010] 1. Compared with the prior art, this press-fitting type pre-installed cap nut improves the convenience of disassembling and assembling the cap nut through the docking slot, docking cylinder, storage groove, clamping block, and reinforcing ring, provides a basic condition for increasing the contact area between an external object and a bolt, thereby reducing the difficulty of disassembling and assembling the bolt and nut mechanism, improving the compactness between the components of the cap nut itself, increasing the stability of the structure of the cap nut, and reducing the hidden danger of damage to the nut components caused by external pressure. Description of the drawings

[0011] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0012] Figure 1 It is a top view structural diagram of the disassembled state of a press-fitting type pre-installed cap nut of the present utility model;

[0013] Figure 2 It is a bottom view structural diagram of the disassembled state of a press-fitting type pre-installed cap nut of the present utility model;

[0014] Figure 3 It is a sectional view structural diagram of the disassembled state of a press-fitting type pre-installed cap nut of the present utility model;

[0015] Figure 4 It is of a press-fitting type pre-installed cap nut of the present utility model Figure 1 The enlarged structural diagram at position A;

[0016] Figure 5 It is of a press-fitting type pre-installed cap nut of the present utility model Figure 2 The enlarged structural diagram at position B.

[0017] Legend description:

[0018] 1. Nut body; 2. Cap; 3. Auxiliary connection mechanism; 4. Limiting mechanism; 5. Docking slot; 6. Reinforcing ring; 7. Docking cylinder; 8. Storage groove; 9. Clamping block; 10. Added opening. Specific implementation manners

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0020] Referring to Figures 1-4 , an embedded pre-installed cap-shaped nut according to an embodiment of the present utility model includes: a nut body 1, a cap 2 is provided at the upper end of the nut body 1, and an auxiliary connection mechanism 3 is provided between the nut body 1 and the cap 2. The auxiliary connection mechanism 3 is composed of a docking slot 5, a docking cylinder 7, and a receiving groove 8. The docking cylinder 7 is fixedly connected to the nut body 1, and the part of the docking cylinder 7 connected to the nut body 1 is located inside the docking slot 5. When using the nut, the lower end of the cap 2 and the docking cylinder 7 are respectively located inside the docking slot 5 and the receiving groove 8. The length of the docking slot 5 is greater than the thickness of the docking cylinder 7, that is, when using the nut, the lower end of the cap 2 completely enters the inside of the docking slot 5. The above devices cooperate with each other to form the basic structure of the cap-shaped nut. Among them, the auxiliary connection mechanism 3 uses a multi-layer insertion structure to improve the stability between its own components after the cap-shaped nut is assembled. Among them, the docking cylinder 7 and the receiving groove 8 are the first insertion structure, and the docking slot 5 and the cap 2 are the second insertion structure.

[0021] There are two spaces, a contact area and a limiting area, inside the receiving groove 8. The inner wall of the contact area of the receiving groove 8 is in close contact with the docking cylinder 7, and the inner wall of the limiting area of the receiving groove 8 is not in contact with the side surface of the docking cylinder 7. The self-structure of the receiving groove 8 cooperates with the docking cylinder 7 and the locking block 9 to increase the difficulty of separating the nut body 1 and the cap 2, and improve the stability after the nut body 1 and the cap 2 are spliced.

[0022] A limiting mechanism 4 is provided between the docking cylinder 7 and the cap 2. The limiting mechanism 4 is composed of a locking block 9 and an adding opening 10. The locking block 9 passes through the adding opening 10 and enters the inside of the limiting area of the receiving groove 8. The adding opening 10 improves the convenience of the locking block 9 entering the limiting area of the receiving groove 8. A reinforcing ring 6 is fixedly connected to the lower end of the cap 2. When using the nut, the reinforcing ring 6 is in close contact with the inner wall of the docking slot 5. The reinforcing ring 6 is made of thermoplastic plastic, and the diameter of the reinforcing ring 6 when not stretched is smaller than the diameter of the lower end of the cap 2. The reinforcing ring 6 increases the stability after the docking slot 5 and the cap 2 are clamped.

[0023] Working principle: When assembling the nut, first fix the reinforcement ring 6 on the inner and outer walls of the cap 2, and then carry out the docking work between the nut body 1 and the cap 2. During the process of docking the cap 2, it is necessary to pay attention to aligning the clamping block 9 with the added opening 10. During the hot press fitting process, as the temperature rises, the reinforcement ring 6 melts. However, the space where the reinforcement ring 6 is located is restricted by the inner wall of the docking slot 5 and the cap 2. Therefore, the melted reinforcement ring 6 completely fills the gap between the docking slot 5 and the cap 2, thereby further improving the stability and sealing performance between the components of the cap nut itself. When it is necessary to disassemble and assemble the nut fixing part for equipment maintenance work, forcibly rotate the cap 2 to destroy the restrictive effect of the reinforcement ring 6 on the cap 2, and align the clamping block 9 with the added opening 10, then the cap 2 can be directly separated from the nut body 1, so as to assist in removing the bolt fastener connected to the nut. After the maintenance is completed, replace the brand-new reinforcement ring 6, and heat the part of the reinforcement ring 6 after combining the cap nut, and once again utilize the hot melting property of the reinforcement ring 6 to improve the stability between the components of the cap nut itself. During the process of assembling the nut, a marker pen can be used to mark the positions of the clamping block 9 and the added opening 10, so as to improve the convenience of disassembling and assembling the nut.

[0024] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the purpose of the present invention.

Claims

1. A press-fitted pre-installed cap nut, characterized in that, Including: A nut body (1), a cap (2) is provided at the upper end of the nut body (1), an auxiliary connection mechanism (3) is provided between the nut body (1) and the cap (2), the auxiliary connection mechanism (3) is composed of a docking slot (5), a docking cylinder (7), and a receiving groove (8). The docking cylinder (7) is fixedly connected to the nut body (1), and the part of the docking cylinder (7) connected to the nut body (1) is located inside the docking slot (5). When using the nut, the lower end of the cap (2) and the docking cylinder (7) are respectively located inside the docking slot (5) and the receiving groove (8), and a limiting mechanism (4) is provided between the docking cylinder (7) and the cap (2). A reinforcing ring (6) is fixedly connected to the lower end of the cap (2). When using the nut, the reinforcing ring (6) is in close contact with the inner wall of the docking slot (5).

2. The press-fitting type pre-installed cap-shaped nut according to claim 1, characterized in that, There are two spaces, a contact area and a limiting area, inside the receiving groove (8). The inner wall of the contact area of the receiving groove (8) is in close contact with the docking cylinder (7), and the inner wall of the limiting area of the receiving groove (8) is not in contact with the side surface of the docking cylinder (7).

3. The press-fit type pre-installed cap nut according to claim 2, characterized in that, The limiting mechanism (4) is composed of a block (9) and an adding opening (10), and the block (9) passes through the adding opening (10) and enters the inside of the limiting area of the receiving groove (8).

4. A press-insert type pre-installed cap nut according to claim 1, characterized in that, The length of the docking slot (5) is greater than the thickness of the docking cylinder (7), that is, when using the nut, the lower end of the cap (2) completely enters the inside of the docking slot (5).

5. A press-fitted pre-installed cap nut according to claim 1, characterized in that, The reinforcing ring (6) is made of thermoplastic plastic, and the diameter of the reinforcing ring (6) when not stretched is smaller than the diameter of the lower end of the cap (2).

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